Pneumatic stacker.



No. 739,869. .PATENTBD SEPT. 29, 1999.

J. HENRY. PNBUMATIG Swann. APPLICATION FILED DEO. '22, 1902.

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N'VENTOR WTNESSE Attorney rn: Noms Finns mow-umu.. wAsHmmcN. n. c

No. 739,969. PATBNTED'SEPT. 29, 1993.

` J. HENRY, l I

.PNEUMATIG STAGKBR..

APPLICATION FILED PBO. 22, 1902.

R0 MODEL. I 2 SHEETS-SHEET Z.

WTNESSES NVENTOR ma mams fr :ns no., ngonrumu.. wAsHmoYon. o. c.

`Patented September 29, 1903.

PATENT OFFICE.

'l 'lioHN'i-IENRY, or GRAND FORKS, NoRrri DAKOTA.

PN EU MATIC s'rAc:Kiz's.

SPEGIFICATION' forming part of Letters Patent No. 739,869, datedSeptember 29, 1903.

Application filed December 22, 190:2. Serial No.V 136,270. (ll'ovmodel.)

To all whom it may concern:

Be it known that I, JOHN HENRY, of Grand Forks, in the county ofGrandjForks' and State of North Dakota, have'invented certain new anduseful Improvements' in Pneumatic Stackers and I do hereby declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it appertains tomake and use the same. f *f My invention relates to an improvement inpneumatic stackers for threshing-machines,

the obj ect being to provide simple and eect'- ive means that can beattached to any ordinary threshing-machine for dischargingthe straw andchaff either together or separately; and it consists in the parts andcombinati'olis of parts, as will be more fully described, and pointedout in the claims. j

In the accompanying drawings, Figure 1 is a view in side elevation ofthe rear end of a threshing-machine, showing my improvement appliedthereto. Fig. 2 is a similar view showing the attachment or improvementin central vertical section. vertical sectional view on the linea 'a ofFig. 2, and Fig. 4 is a view in section on the'line b b of Fig. 2.

1 represents a threshing-machine vof any approved form provided at itsrear end with my improved attachment.v This attachment comprises ahopper discharging into the chute or trunk 3, a hopper or receptacle 4for the cha, a fan or fans 15a, and gearing for actuating themovable'parts.

The hopper 2 is secured to the rear end of the thresher-frame 1, and thefront endfof the same from a point below the conveyer or separator 5 isopen, so that the straw carried by the separator or conveyer 5 will bedeposited directly into the hopper 2. This hopper is as wide as thethresher-frame at vthe point of its attachment to the thresher-frame andis provided centrally with a depending boot from the conveyer 5 passes.Some of. the straw as it leaves the conveyerfalls directly through intothe boot 6, while that at the sides falls onto conveyers. Theseconveyors are preferably in the form of endless belts 7, carrying slats8, each belt being mounted on drums or shafts 9. The outer drum of eachFig. 3 isla t'rar'lsverseV 'fansor blowers 15a.

pair of Shafts 9 is provided with a bevel-,piny ion 1 0, whichengage'pinions 11 on transverse shaft`12.- .This 'sh'aft`12 is locatedadjacent 'tothe rear walls of Vthe hopper 2 and boot 6 and is providedcentrally with the blades or arms 13,' which latter operate as the shaftis rotated to engage the straw and force it down into the' boot. Thesearms also operate to loosenup the straw and distribute it in suchcondition that it will bemost advantageously acted upon by thewind-blast. Shaft 12 is ac,-

tuated by belt 14, leading to shaft 15, the latterlbeing actuated by abelt leading to a driven pulley on the thresher.

From the above it'pwill be seen that the straw is discharged'into thehopper 2, part pa'ssingthrough,`while that at the sides falls ontotheco'nveyers 7 7a and is carried by the latter l toward the center anddischarged through the open bottom into the boot. The lower end of thisboot 6 is in open communication with the chute or trunk 3. Hence thepassage of the straw through the boot is assisted by the suction of theair-blast from the The lower end of the chut-e or trunk 3 at itsjuncture with the boot 6 is curved, as shown, so as to provide an easyunobstructed path for the straw, and the fans or `blowers 15a arelocated below the boot and in advance of the chute ortrunk in a positionto discharge their blasts into the lower end ofthe chute or trunk at thejuncture 0f the latter and the boot. The fan-casings are separatedslightly, as shown in Fig. 3, and both fans L are'actuated by the shaft15, previously ref-ferred'to, and each casing is provided in its innerwall with an opening 16, through which the air-enters the casings. Thedischarge end otboth fan-casings communicate with the ch ute'or trunk 3,as previously described,

Vand project laterally beyond said chute or trunk, as'shown in Figs. 3and 4, the projecting portions of said discharge ends communiprojectupwardly alongside of the chute or trunk 3 and discharge into thelatterat a -poi'nt'lS above open lowerend of the'boot, thus producing asuction in the boot, which y .y eating with the auxiliary blast-pipes17,which 6, through which I all the straw discharged ICO base, but maybe gradually converted into cylindrical shape above the base, the shape,however, being immaterial.

The chaff separated from the grain and strawis dischargedinto thereceptacle4. This hopper or receptacle 4 extends transversely across themachine in front of the fans and is provided with a conveyer 19,comprising a chain, belt, or other fieXible device carrying a series ofslats or scrapers 20, which latter operate to convey the chaff towardthe eenter and discharge it int-o a pocket which is in opencommunication with the hopper or receptacle 4. The chain or otherfiexible device 19 of the conveyer is mounted on pulleys or wheels nearthe ends of hopper 4, and motion is imparted thereto through shaft 22,carrying one of the conveyer-pulleys and also a worm-wheel 23, whichmeshes with worm 2l on shaft l5.

Located within the hopper 4, to one side of the pocket 2l, is the falsebottom 25, which latter rests in a plane just below the top of theconveyer, so that the chaff falling on that side of. the hopper settleson the false bottom and is swept by the slats toward and into pocket 2l,while the chaff at the other side of the pocket falls onto the mainbottom of the hopper 4 and is carried by the slats and deposited intothe central pocket 2l. The chaff thus deposited into the pocket 21 iswithdrawn by suction or air-blast and may be discharged through the fansinto the spout with the straw or may be discharged into a separate pile.Leading rearwardly from the pocket 2l is the spout 26, the discharge endof which is shown as terminating justin rear of the fan-casings 15, butwhich may becontinued rearwardly or laterally to either side, as may bedesired. This spout is between the fan-casings and is provided in itsupper side with a hinged section 27, which latter may be dropped, asshown in Fig. 2, so as to direct the chaff into the fan-casings, or maybe raised by handle 2S to close the opening leading to the fan-casings,and thus cause the chaff to pass out through the discharge end of spout26. \Vhen it is desired to discharge the chaff with the straw, thehinged section 27is dropped to the position shown in Fig. 2,' and thesuction of the fans draws the chaff from pocket 21 through spout 26 intothe fancasings and out of the latter into the chute or trunk 3. When itis desired to separate the chaff from the straw, the section 27 israised, so as to cut off communication between spout 26 and thefan-casings, and the valves 29 in pipes 30 are opened. These pipesconnect with the peripheries of the fan-casings, and consequentlyreceive blasts which entering the pocket 2l from the front drive thechaff out through spout 26.

In order to insure suction sufficient to withdraw the chaff, I prefer topartly inclose the adjacent openings 16 in the fan-casings by the curvedshields 31, which latter extend from one Casin g to the other and arepivoted to both, so that they may be adjusted toward and away from theopenings 16. These shields are at opposite ends of the hinged section 27of spout 26, so that when the section 27 is lowered to opencommunication between spout 26 and the fan-casiugs the greater part ofthe air drawn into the fan-casings must come through spout 26.

It is evident that changes in the construction and relative arrangementof the several parts might be made without avoiding my invention, andhence I would have it linderstood that I do not restrict myself to theparticular construction and arrangement of parts shown and described;but,

Having fully described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. In a pneumatic stacker, the combination with a chaff-receptacle, apocket communieating therewith, and means for discharging chaff intosaid pocket, of pneumatic devices communicating with said pocket forremoving chaff from said pocket and discharging it, and adischarge-outlet for said pocket independent of said pneumatic devices.

2. In a pneumatic stacker, the combination with a hopper for the straw,a hopper for the chaff and a chute or trunk, of a fan connected with thechute or trunk and having blast and suction connection with thechaff-receptacle.

3. In a pneumatic stacker, the combination with a hopper for the straw,a hopper for the cha, conveyers in said hoppers and a chute or trunk, ofa fan connected with the chute or trunk, a spout leading from thechaff-hopper and a fan having a suction and blast connection with thechaff-hopper.

4. In a pneumatic stacker, the combination with a hopper for the straw,a hopper for the cha and a chute or trunk having a connec- .tion withboth hoppers, of a fan connected with both hoppers and having a blastand suction connection with the chaff-hopper.

5. In a pneumatic stacker, the combination with a hopper for the straw,a conveyor therein and a boot below and to one side the conveyer, of achute or trunk leading from the lower end of the boot and a fan-casingdischarging into the lower end of the chute or trunk.

6. In a pneumatic stacker, the combination with a hopper for the straw,a conveyer within said hopper and boot depending from one side of theconveyer, of a chute or trunk leading from the lower end of the boot,and a fancasing discharging into the chute or trunk below theboot-opening and also above the latter.

7. In a pneumatic stacker, the combination with a hopper for the straw,a boot leading from said hopper, and a pair of conveyers on oppositesides of the boot-opening in the hopper, of a chute or trunk leadingfrom the lower end of the boot and a fan discharging into said chute ortrunk.

8. The combination with a hopper for tho IOO IIO

l1. The combination with a hopper for cha, aconveyer in said hopper anda pocket I5 below the hopper into which the cha is deposited by theconveyer, of a fan having a suction connection with the pocket.

In testimony whereof I have signed this specification in the presence oftwo subscribzo ing witneses.

'JOHN HENRY.

Witnesses: l

'A. W. BRiGHT,

S. G. NOTTINGHAM.

